@article{BSMF_1900__28__143_1,
     author = {Caspary, F.},
     title = {Sur le centre de gravit\'e d'un quadrilat\`ere},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {143--146},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {28},
     year = {1900},
     doi = {10.24033/bsmf.627},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.627/}
}